精确的对数拉伸DMO方法

Exact logarithmic stretching DMO

采用固定相位法 ,通过对数变换从HaleDMO的tx域解析脉冲响应的结果可以导出精确的对数拉伸DMO算法。精确的对数拉伸DMO算法具有和Hale的DMO算法一样的精度 ,也具有传统的对数拉伸DMO算法的计算效率。DMO脉冲响应验证与实际地震资料处理表明 ,该算法是一种实用的DMO方法。

Exact logarithmic stretching DMO algorithm is derived via logarithmic transformation on Hale DMO in tx domain by using stationary phase method. The exact logarithmic stretching DMO algorithm has the same accuracy as Hale DMO and the same computational efficiency as conventional logarithmic stretching DMO. Verification of DMO impulse response as well as real seismic data processing show that this algorithm is a practical DMO method.